1220112-89-9Relevant academic research and scientific papers
A panchromatic supramolecular fullerene-based donor-acceptor assembly derived from a peripherally substituted bodipy-zinc phthalocyanine dyad
Rio, Yannick,Seitz, Wolfgang,Gouloumis, Andreas,Vazquez, Purificacion,Sessler, Jonathan L.,Guldi, Dirk M.,Tomas, Torres
, p. 1929 - 1940 (2010)
A panchromatic 4,4-difluoro4-bora-3a,4a-diaza-s-indacene -zinc phthalocyanine conjugate (BodipyZnPc) 1 was synthesized starting from phthalocyanine aldehyde 4, via dipyrromethane 3 and dipyrromethene 2. Conjugate 1 represents the first example in which a Bodipy unit is tethered to the peripheral position of a phthalocyanine core. Electrochemical and optical measurements provided evidence for strong electronic interactions between the Bodipy and ZnPc constituents in the ground state of 1. When conjugate 1 is subjected to photoexcitation in the spectral region corresponding to the Bodipy absorption, the strong fluorescence characteristic of the latter subunit is effectively quenched (i.e., ≥97%). Excitation spectral analysis confirmed that the photoexcited Bodipy and the tethered ZnPc subunits interact and that intraconjugate singlet energy transfer occurs with an efficiency of ca. 25 %. Treatment of conjugate 1 with N-pyridylfulleropyrrolidine (8), an electron-acceptor system containing a nitrogen ligand, gives rise to the novel electron donor-acceptor hybrid l?8 through ligation to the ZnPc center. Irradiation of the resulting supramolecular ensemble within the visible range leads to a charge-separated Bodipy-ZnPc?+-C60 ?- radical-ion-pair state, through a sequence of excited-state and charge transfers, characterized by a remarkably long lifetime of 39.9 ns in toluene.
Bis(dipyrrinato)zinc(II) Complexes: Emission in the Solid State
Tsuchiya, Mizuho,Sakamoto, Ryota,Shimada, Masaki,Yamanoi, Yoshinori,Hattori, Yohei,Sugimoto, Kunihisa,Nishibori, Eiji,Nishihara, Hiroshi
, p. 5732 - 5734 (2016)
This Communication reports the first observation of solid-state photoluminescence in bis(dipyrrinato)zinc(II) complexes with various substituents. The report discusses the effect of their substituents on their crystal structures and spectroscopic properties. Their meso-aryl groups are revealed to play important roles in the spectroscopic properties in the solid state.
